面向遥感影像的通用模型预训练与自适应优化系统及方法

By employing a self-supervised pre-training architecture based on geographic coordinate hashing and multi-temporal mask reconstruction, combined with a dynamic hierarchical transfer mechanism and gradient inversion layer, the challenges of high-quality annotation costs and transfer learning in intelligent interpretation of remote sensing images are addressed. This architecture enables efficient remote sensing image feature extraction and cross-modal transfer, improving the application effectiveness in scenarios such as disaster early warning and resource surveys.

CN121415186BActive Publication Date: 2026-07-17SIWEI SHIJING TECH (BEIJING) CO LTD
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Patent Information

Application Number
CN202512004136.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-07-17
Estimated Expiration
2045-12-29

AI Technical Summary

Technical Problem

Existing intelligent interpretation technologies for remote sensing images face challenges such as high costs for high-quality annotation, failure to utilize the unique geographic coordinate information of remote sensing data in self-supervised pre-training, and the need to pre-set target domain data distribution parameters for transfer learning. These issues limit their application in critical scenarios such as disaster early warning and resource surveys.

Method used

A self-supervised pre-training architecture based on geographic coordinate hashing and multi-temporal mask reconstruction is adopted. Combined with a dynamic hierarchical transfer mechanism and gradient inversion layer, a cross-modal spectral invariant feature space is constructed. A lightweight cue learning framework is designed to enhance the robustness of spatiotemporal feature extraction and transfer learning efficiency of remote sensing images.

Benefits of technology

It significantly improves the feature extraction capability of remote sensing images in time-series analysis tasks, reduces the dependence on computing resources, enhances the stability of cross-modal transfer tasks and the generalization robustness of small sample scenarios, and strengthens the adaptability and engineering practicality of the model on different hardware platforms.

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Abstract

本发明公开了遥感影像技术领域的面向遥感影像的通用模型预训练与自适应优化系统及方法,包括:获取包含多模态遥感核心数据及其对应辅助地理信息的结构化数据集;基于所述结构化数据集,利用双通道特征提取架构同步处理视觉光谱特征与地理空间特征,并结合地理上下文对比学习与多时相掩码重建的创新训练任务进行模型训练,构建具有通用表征能力的预训练模型;将所述预训练模型应用于目标域时,利用动态梯度反转层进行跨域特征分布对齐,并采用任务感知解冻策略选择性解冻部分模型参数,完成自适应迁移。本发明通过地理坐标哈希编码与多时相掩码重建的自监督预训练架构,增强时空特征提取鲁棒性,同时解决小样本场景的泛化难题。
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